Wireless Metrics

dBm is defined as power ratio in decibel (dB) referenced to one milliwatt (mW). It is an abbreviation for dB with respect to 1 mW and the "m" in dBm stands for milliwatt.

dBm is different from dB. dBm represents absolute power, whereas dB is a ratio of two values and is used to represent gain or attenuation. For example, 3 dBm means 2 mW, and 3 dB means a gain of 2. Similarly, -3 dBm means 0.5 mW, whereas -3 dB means attenuation of 2.

The formula to calculate dBm from mW is:

dBm = 10 log10( P )
1mW

Table of dBm and mW
http://www.guatewireless.org/internetworking/redes/wireless/tabla-de-relacion-entre-dbm-y-potencia-de-transmision-wlan/

Salesforce Apexpages jQuery

References:

[1]
http://code.google.com/apis/libraries/devguide.html

[2] jQuery UI for Salesforce
http://www.titaniainc.com/ui-enhancements/jquery-enhanced-components-release/
[3] Dependent Multilevel Selectlists
http://blog.jeffdouglas.com/2008/11/25/dependent-multilevel-selectlists/
[4] Salesforce Form Validation Enhanced
http://th3silverlining.com/2010/03/02/visualforce-form-validation-enhanced/
[5] Make select list with ApexClass
http://www.salesforce.com/us/developer/docs/pages/Content/pages_compref_selectList.htm

Salesforce Apexpages Styles

Debugging Visualforce Pages with custom Styles for UI compatibility
http://www.forcetree.com/2010_06_01_archive.html

BackTrack Live USB References

http://www.backtrack-linux.org/tutorials/usb-live-install/

http://www.pendrivelinux.com/usb-backtrack-linux-installation/

Making into Linux
http://www.kriptopolis.org/backtrack-usb

unetbootin
http://unetbootin.sourceforge.net/

jQuery multiselect widget

http://www.erichynds.com/examples/jquery-ui-multiselect-widget/demos/#single

http://www.devirtuoso.com/2009/08/styling-drop-down-boxes-with-jquery/

http://jqueryui.com/demos/autocomplete/#combobox

http://jquery.sanchezsalvador.com/jquery/page/jquerycomboboxexamplealternatestyle.aspx

Nude Calendar Gallery

http://www.yakutu.com/yakutu.aspx?id=6759

Salesforce Work with Opportunities

Editing Multiple Records Using a Visualforce List Controller
http://developer.force.com/cookbook/recipe/editing-multiple-records-using-a-visualforce-list-controller

WPA-PSK tips

Manual seguridad alta con configuración WPA-PSK
http://www.seguridadwireless.net/hwagm/wpa.html

Password recovery tools

Cain & Abel
http://www.oxid.it/cain.html

Postgres Auditory

Trace connections
select * from pg_stat_activity;

select client_addr,count(*) from pg_stat_activity group by client_addr;

select datname,client_addr,count(*) from pg_stat_activity group by datname,client_addr;

Test times of count(*)

EXPLAIN ANALYZE SELECT COUNT(*) FROM remitos;

Obtain rows(tuples) info

select * from pg_class where relname = 'remitos' and relkind = 'r';
select * from pg_stat_all_tables where relname = 'remitos';

and look at the n_tup_ins, n_tup_del, ...


references:
http://www.postgresonline.com/journal/archives/134-Terminating-Annoying-Back-Ends.html

Salesforce Test Visual Apex Pages

1) Page.existingPageName

2) PageReference pageRef = new PageReference('partialURL');
PageReference pageRef = new PageReference('/apex/HelloWorld');

3) PageReference pageRef = new PageReference('fullURL');
PageReference pageRef = new PageReference('http://www.google.com');

4) PageReference pageRef = ApexPages.currentPage();

Executing page:
https://c.na7.visual.force.com/apex/SecondAccount


References

Displaying JIRA related information in Salesforce.com
http://www.customware.net/repository/pages/viewpage.action?pageId=62455956

Wireless Punto a Punto :: Requisitos x distancia

Enlace punto a punto(requisitos x distancias):

Enlace 3Km entre 02 locales:
02 Antenas Hyperlink de 15 dBi (U$ 73 c/u)
02 AP(AccessPoint) TRENDnet de 54 Mbps (U$ 107 c/u)
02 pigtail de 60 cm (U$ 25 c/u)

Puede lograr enlaces de hasta 7Km usando AP(TRENDnet , DLINK , LINKsys , Edimax)


Enlace 8Km:
02 Antenas Hyperlink de 24 dBi (U$ 107 c/u)
02 AccessPoint(AP) Trendnet de 54 Mbps (U$ 110 c/u)
02 pigtail de 2 metros (U$ 34 c/u)


Enlace 1Km:
02 Antena Hyperlink Flat Panel de 14 dBi (U$ 45 c/u)
02 AP TP-LINK 54 Mbps (U$ 79 c/u)
02 Pigtail de 60 cm. (U$ 22 c/u)


Referencias
http://www.ds3comunicaciones.com/
http://www.opcionweb.com/index.php/2008/03/04/tipos-de-antenas-wifi/

Adobe Acrobat Reader Resources

Adobe Acrobat 8 Pro Español Completo
http://alvareitor.programasfull.com/adobe-acrobat-pro-8-espanol-descargar.html
Adobe Acrobat 8 Professional Multi 5 Español
http://www.gratisprogramas.org/descargar/adobe-acrobat-8-professional-multi-5-espanol-mu-full-iso/
Adobe Acrobat Pro X v10.0 MultiLenguaje No Español
http://www.taringa.net/posts/downloads/7987279/Adobe-Acrobat-Pro-X-v10_0-MultiLenguaje-No-Espanol.html

VirtualDub resources

Plugins WMV,FLV, MPEG-2
http://home.comcast.net/~fcchandler/

Tiendas Perú

http://www.diazcomunicaciones.com/tienda/camaras-vigilancia-c-45.html

http://www.rematazo.com

Url Test Security

Sucuri Security Scanner
http://sitecheck.sucuri.net/scanner/
http://www.avgthreatlabs.com/sitereports

http://onlinelinkscan.com/

http://www.mywot.com/es (reputacion)

http://www.stopbadware.org/home/reportsearch (Indica quien te puso en la lista negra)
http://wepawet.cs.ucsb.edu

Comics Adult

http://www.mundogroovy.net/forumdisplay.php?181-Hentai

http://mexhentai.blogspot.com/

http://www.elcachondeo.cl/foro/showthread.php?t=55183

Sunat

Renta de 4ta categoria
http://www.tributacionperu.com/blog/archives/278

http://www.forosperu.net/showthread.php?t=58561

Linux CentOS tcptrack

tcptrack -i eth0

Reciclar encendedores

http://www.dogguie.com/reciclando-viejos-encendedores-desechables/?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+dogguie+%28Dogguie%3A+curiosidades%2C+rarezas+y+humor%29